Looking for Fantasy/Isekai WN/LN with romance or harem early on...

Hi i'm looking for isekai or even more simple Fantasy (sci fi could work to?) novels that develop the romance earlier on, kind of like In another world with my Smartphone and How a Realist Hero Rebuilt the Kingdom. If possible i would prefer something that either has a lot of volumes/chapters released or completed. Currently reading tate no yusha but quite honestly his oblivious behavior (and the trope in general of the dense character) is starting to piss me off, so i will need something to recuperate after this...